X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=includes%2FRts.h;h=1d455f0d6d222179ecfa7385afca22b601fb71be;hb=66579ff945831c5fc9a17c58c722ff01f2268d76;hp=5aff979fd914cdab966a49d44ada802f194f88f0;hpb=e9fdcd7b7d8ae466d83ce9f77f34e9b62b2a4fa7;p=ghc-hetmet.git

diff --git a/includes/Rts.h b/includes/Rts.h
index 5aff979..1d455f0 100644
--- a/includes/Rts.h
+++ b/includes/Rts.h
@@ -38,6 +38,12 @@ extern "C" {
 #define FLEXIBLE_ARRAY 0
 #endif
 
+#if __GNUC__ >= 3
+#define ATTRIBUTE_ALIGNED(n) __attribute__((aligned(n)))
+#else
+#define ATTRIBUTE_ALIGNED(n) /*nothing*/
+#endif
+
 /* Fix for mingw stat problem (done here so it's early enough) */
 #ifdef mingw32_HOST_OS
 #define __MSVCRT__ 1
@@ -51,7 +57,9 @@ extern "C" {
  * We often want to know the size of something in units of an
  * StgWord... (rounded up, of course!)
  */
-#define sizeofW(t) ((sizeof(t)+sizeof(W_)-1)/sizeof(W_))
+#define ROUNDUP_BYTES_TO_WDS(n) (((n) + sizeof(W_) - 1) / sizeof(W_))
+
+#define sizeofW(t) ROUNDUP_BYTES_TO_WDS(sizeof(t))
 
 /* 
  * It's nice to be able to grep for casts